Income tax expense was as follows: (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current income taxes
Federal									$ 1,796,283	$ 1,543,334	$ 1,742,430
State									321,971
Total current tax expense									2,118,254	1,543,334	1,742,430
Deferred income tax (benefit) expense									(46,751)	422,345	432,844
Total income tax expense	$ 464,814	$ 525,710	$ 515,264	$ 565,715	$ 528,834	$ 519,930	$ 459,582	$ 457,333	$ 2,071,503	$ 1,965,679	$ 2,175,274